Domain-Driven Design Skill

DDD manages complexity through alignment between software and business reality. Strategic design (boundaries, language, subdomains) provides more value than tactical patterns (aggregates, repositories).

When to Apply DDD

Apply DDD when:

• Domain has intricate business rules
• System is long-lived and high-value
• Domain experts are available
• Multiple teams/departments involved
• Software represents competitive advantage

DDD is overkill when:

• Simple CRUD applications
• Tight deadlines, limited budgets
• No domain experts available
• Complexity is purely technical, not business